Solar Cycle - Jupiter, Saturn Rotation?
Posted 01/01/07
I don't really have much more than the raw data to contribute to the
possibility of this connection along with my own speculation based on
admittedly inadequate knowledge, but as the
web has become the
repository for almost everything why not this. Below is an interesting
relationship I have investigated between the solar cycle and the
rotation of the outer planets Saturn and Jupiter.
The irregular peaks, on the charts above, are of course, the rise and
fall of the sun spot numbers, the purple lines are the opposition and
conjunctions of Saturn and Jupiter. The green boxes span the years
between the solar peak and the closest conjunction or opposition.
The number above is the difference in years between the cycle top
and the opposition or conjunction. Note that the solar cycle has two
periods of "stretched" cycles. Both are proceeded by coincident
cycles. It is interesting that the last cycle (23), which peaked in 2000,
was coincident and cycle 24 is running "late." Using the long cycles
that have come before as a guide, the next solar peak might not be
until 2015 and it will be the first of a number of weak cycles.
Below is a histogram of the data. Between 1750 and 2010 there are
24 sun spot peaks. Over the same time there are 26 Jup-Sat
oppositions and conjunctions. Based on this data the sun spot cycle
is 10.42 years and the Jup-Sat cycle is 9.54 years. The solar cycle is
often described as a 21 year cycle composed of two half cycles. The
full Jupiter/Saturn cycle, from conjunction to conjunction, is also two
10 year half cycles.
62.5% of all points are concentrated in
30% of the possible slots, another 30% of
the slots are empty. The odds of this
happening by random chance are very low.
For comparison, if the solar cycle were
fixed, like the Jupiter/Saturn cycle and the
two cycles run in and out of phase over the
same 260 years a histogram like the one to
the left would be the result.
The possibility that the magnetic solar cycle is at least somewhat
controlled by the magnets (planets) rotating around it was given a
boost recently by the discovery of a
star with a large planet appearing to effect the spot cycle of it's star.
In fact the solar magnetic cycle might  be just a near surface
phenomena not an internally generated cycle.
Years

-5        XXX
-4        XXXXXX
-3        XXXXX
-2        XXXX
-1        XX
0        XXX
1        X
2
3         
4         
Years

-5        XX
-4        XXX
-3        X
-2        XXX
-1        XXX
0        XX
1        XX
2        XXX
3        XX
4        XXX